NIKE Men 5" Dri Fit Lined Woven Distance Shorts 88% Polyester/12% Spandex Machine Washable This lightweight and breathable running short is designed with a built in brief. Style: Distance Running Short - 5" inseam Vented sides for added breathability. Side pockets, inner pouch pocket at waist, and zipper pocket on back to hold keys, ipod, etc. Fabric: 88% Polyester/12% Spandex Nike's Dri-FIT technology wicks moisture away from the skin and quickly evaporates it to the surface. You're sure to stay cool and comfortable in this breathable running short.